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Decisions and Proposals

The ERA's decisions and the access arrangement proposals submitted by Western Power during this access arrangement assessment period are available here.

Access Arrangement Variations Decisions

2015 Mid-Period Variation  

Date Documents File type
06-Jun-15
Decision on proposed variation to Western Power's Access Arrangement Adobe PDF50 kB
06-Jun-15
Application for proposed modifications to Western Power Access Arrangement
Adobe PDF974 kB
06-Jun-15
Amended proposed revisions to the Access Arrangement for the Western Power Network with track changes Adobe PDF961 kB

Mid-Period Variation - revision to Pricing Methods 

Date Documents File type
03-Apr-14  Variations to Western Power's Access Arrangement Adobe PDF993 kB

Mid-Period Variation - revision to Revenue Caps to reflect revised recovery period of Deferred Revenue 

Date Documents File type
04-Jun-13
Decision on proposed variation to Western Power's Access Arrangement Adobe PDF195 kB
17-May-13
Issues Paper on proposed variations to Western Power's Access Arrangement
Adobe PDF 197 kB

Access Arrangement Decisions 

Date Documents File type
29-Nov-12
Further Final Decision on Proposed Revisions to the Access Arrangement
Adobe PDF 735 kB
29-Nov-12
Appendix 1: Target Revenue Calculation (Revenue Model)
Adobe PDF 1.69 MB 
29-Nov-12 Western Power's access arrangement information Adobe PDF 23.5 MB
05-Sep-12 Final Decision on Proposed Revisions to the Access Arrangement Adobe PDF 6.9 MB
05-Sep-12 Appendix 2: Target Revenue Calculation (Revenue Model) Adobe PDF 646 kB
05-Sep-12 Appendix 10: Geoff Brown & Associates Ltd - Technical Review Adobe PDF 555 kB
05-Sep-12 Appendix 11: Western Power Service Standard Performance Report 2011/12 Adobe PDF 15.9 MB
29-Mar-12 Draft Decision on Proposed Revisions to the Access Arrangement Adobe PDF 128 kB
29-Mar-12 Appendix 3: Target Revenue Calculation (Revenue Model) Adobe PDF792 kB
29-Mar-12

Appendix 6: BDO Agreed Upon Procedures Report 

Adobe PDF 991 kB
29-Mar-12 Appendix 6: Geoff Brown & Associates Ltd Technical Review Adobe PDF2.5 MB
14-Nov-11 Public forum slides for Western Power's Access Arrangement Adobe PDF 2.3 MB
07-Nov-11 Issues Paper on Proposed Revisions to the Access Arrangement Adobe PDF 474 kB

Access Arrangement Variations Proposals

Reference Tariff

Date Documents File type
3-Apr-14 Proposed amendments to Reference Tariff Adobe PDF 11 MB

Price List and Price List Information

Date Documents File type
3-Apr-14
Proposed amendments to Price List and Price List information
Adobe PDF 1 MB

Proposed revised Access Arrangement following Final Decision

Date Documents File type
29-Nov-12 
Addendum to amended proposed revisions to the access arrangement for the Western Power Network
Adobe PDF 180 kB
31-Oct-12 Western Power – Cover Letter re Amended proposed Revisions to the Access Arrangement for the Western Power Network
Adobe PDF 6.9 MB
31-Oct-12 Amended Proposed Revisions to the Access Arrangement for the Western Power Network
Adobe PDF 1.89 MB
31-Oct-12 Amended proposed Access Arrangement information for the Western Power Network
Adobe PDF 25.3 MB
31-Oct-12 Amended Proposed Revisions to the Access Arrangement for the Western Power Network – Track Changes
Adobe PDF 798 kB
31-Oct-12 Appendix A – Electricity Transfer Access Contract– Track Changes
Adobe PDF 688 kB
31-Oct-12 Appendix B – Applications and Queuing Policy – Track Changes
Adobe PDF 955 kB
31-Oct-12 Appendix C1 – Contributions Policy – Track Changes
Adobe PDF 246 kB
31-Oct-12 Appendix C2 – Distribution Headworks Methodology Track Changes
Adobe PDF230 kB
31-Oct-12 Appendix E – Reference Services – Track Changes
Adobe PDF 240 kB

Proposed revised Access Arrangement following Draft Decision

Date  Documents File type
05-Sep-12 Revised Access Arrangement Appendix S - SKM - CBD 25 year strategy - Review of Planning Philosophies Adobe PDF3.96 MB
05-Sep-12 Revised Access Arrangement Appendix T - SKM - CBD 25 year strategy - Load Area Development Report Adobe PDF 6.36 MB
26-Jul-12 Proposal seeking additional operating costs for the third access arrangement period  (Electricity Networks Access Funding) Regulations 2012 Adobe PDF32 kB
06-Jun-12 Revised proposed revisions to the Access Arrangement for the Western Power Network - cover letter Adobe PDF27 kB
06-Jun-12 Revised proposed revisions to the Access Arrangement for the Western Power Network
Adobe PDF1.4 MB
06-Jun-12
Amended access arrangement information for the Western Power Network
Adobe PDF1.4MB
13-Jun-12
Correction to table 20 in access arrangement information  Adobe PDF142 kB
06-Jun-12 Revised Access Arrangement Information - Appendices
Adobe PDF 1.1 MB
06-Jun-12 Revised Access Arrangement (track changes) - Western Power
Adobe PDF714 kB
06-Jun-12 Revised Access Arrangement Appendix A - ETAC (track changes)
Adobe PDF 599 MB
06-Jun-12 Revised Access Arrangement - Appendix B - Application and Queing Policy (track changes)
Adobe PDF 758 kB
06-Jun-12 Revised Access Arrangement Appendix C - Contributions Policy (track changes)
Adobe PDF244 kB
06-Jun-12 Revised Access Arrangement Appendix C2 - Distribution Headworks Methodology (track changes)
Adobe PDF 259 kB
06-Jun-12 Revised Access Arrangement Appendix C3 - DLVCS methodology (track changes)
Adobe PDF 181 kB

Proposed revised Access Arrangement

Date Documents File type
07-Oct-11 Submission letter
Adobe PDF 108 kB
07-Oct-11 Proposed revisions to Access Arrangement
Adobe PDF 1.4 MB
18-Oct-11 Appendix A - Electricity Transfer Access Contract - Track Changes
Adobe PDF 705 kB
18-Oct-11 Appendix B - Applications and Queuing Policy - Track Changes
Adobe PDF 480 kB
18-Oct-11 Appendix C1 - Contributions Policy - Track Changes
Adobe PDF 259 kB
18-Oct-11 Appendix C2 - Distribution Headworks Methodology - Track Changes
Adobe PDF 175 kB
07-Oct-11 Access Arrangement Information
Adobe PDF 4.9 kB
Access Arrangement Information - Appendix A - AA3 Capex and Opex Report
Adobe PDF 2.5 MB
Access Arrangement Information - Appendix B1 - AA2 Capital Expenditure Report
Adobe PDF 437 kB
Access Arrangement Information - Appendix B2 - AA2 Project and Program List and Variance
Adobe PDF 295 kB
Access Arrangement Information - Appendix C - AA1 Speculative Investment
Adobe PDF 189 kB
Access Arrangement Information - Appendix D - Justification for Recovery of regulatory Inventory Costs
Adobe PDF 216 kB
Access Arrangement Information - Appendix E - Cost and Revenue Allocation Method
Adobe PDF 384 kB
Access Arrangement Information - Appendix F - Revenue Model Summary
Adobe PDF 176 kB
Access Arrangement Information - Appendix G - Pro forma Forecast Statements
Adobe PDF 221 kB
Access Arrangement Information - Appendix H - Pro forma regulatory Financial Statements
Adobe PDF 201 kB
Access Arrangement Information - Appendix I - Proposed Mid-Term Revisions to the Applications Queuing Policy for AA2
Adobe PDF 2.7 MB
Access Arrangement Information - Appendix J - Response to Submissions to AQP Revisions
Adobe PDF 526 kB
Access Arrangement Information - Appendix K - Network Investment Strategy
Adobe PDF 5.4 MB
Access Arrangement Information - Appendix L - Network Management Plan
Adobe PDF 4.4 B
Access Arrangement Information - Appendix M - Works Delivery Strategy
Adobe PDF 966 kB
Access Arrangement Information - Appendix N - Enterprise Systems Asset Management Plan
Adobe PDF 240 kB
Access Arrangement Information - Appendix O - Transmission Network Development Plan
Adobe PDF 2 kB
Access Arrangement Information - Appendix P - System Demand Forecasting for AA3
Adobe PDF 992 kB
Access Arrangement Information - Appendix Q - ROAM Report Generation Scenario
Adobe PDF 2.4 MB
Access Arrangement Information - Appendix R - Smart Grid Proposal
Adobe PDF 553 kB
Access Arrangement Information - Appendix S - SKM MMA Review of Demand Forecasts
Adobe PDF 596 kB
Access Arrangement Information - Appendix T - Deloitte Report on Energy and Customer Numbers
Adobe PDF 2.8 kB
Access Arrangement Information - Appendix U1 - Bushfire Management Plan
Adobe PDF 389 kB
Access Arrangement Information - Appendix U2 - Bushfire Management Implementation Plan
Adobe PDF 531 kB
Access Arrangement Information - Appendix V - Yarrow and Decker Report
Adobe PDF 289 kB
Access Arrangement Information - Appendix W1 - CEG Report on Western Power Esclanation Factors
Adobe PDF 760 kB
Access Arrangement Information - Appendix W2 - Macromonitor report on Forecast Labour Costs
Adobe PDF 473 kB
Access Arrangement Information - Appendix X1 - SFG Report on Equity Beta Estimate
Adobe PDF 719 kB
Access Arrangement Information - Appendix X2 - Ernst and Young Report on Aspects of Equity Beta Estimate
Adobe PDF 1.5 MB
Access Arrangement Information - Appendix Y - KPMG Preferences for Supply Reliability Survey
Adobe PDF 10 MB
Access Arrangement Information - Appendix Z - Ernst and Young bi directional Report Adobe PDF 1.4 MB
Page last updated: 15 Sep 2015